Mining and quarrying machine



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C. S. OLDROYD MINING AND QUARRYING MACHINE June 26, 1923. 1,460,073

Original Filed May 3, 1917 i5 sheets-sheet 14 C Fig 2? Patented June 26, 1923,

UNITED stares 1,460,073 PATENT OFFICE.

CYRUS S. O LDROYD, 0F CINCINNATI. DHIO, ASSIGNOB TO O'LDROYD EJZANUFACTURING COMPANY, OF KNOXVILLE, TENNESSEE, A. CORPORATION OF TENNESSEE.

MINING AND QUARRYING MACHINE.

Application filed May 3, 1917, Serial No. 166,172. Renewed December 11, 1922. I

To all whom it may cooioemt:

Be it known that l, CYRUS e. OLnnoYD, a citizen of the United States, residing 304 WValnut St. Cincinnati. in the county of Hamilton and State of Ohio, have invented a newand useful Improvement in Mining and Quarrying Machines, of which the following is a specification, referente being had to the accompanying drawii'ig. Fly improvement r lat-es particularly to' machines used for or. ing into upright walls of coal, rock, or similarmaterial. the machine comprising cutting means actuated by the machine and projected endwise' into the wall of coal, or,:other material, and then moved sidewise' to make a sweeping cut; the machine being, however, adapted to rut in a variety of other ways.

The'ob ject of my improvement is to pro duce a machine by which the cutting means may be made to cut kerfs into the wall as follows: (1) horizontally along the floor level and horizontally at other levels as high as the machine can reach; vertically and parallel to the general forward course of the machine within a certain range and diagonally to saidcourse within a more extended range; 3) obliquely toward the right or toward tie left within a certain range; l) annularly around a horizontal axis which is parallel to the forward course of the machine; 5) in a variety of curves, and (6) upright and transverse to the length of the machine.

Another object of the invention is to provide mechanism comprising cutting means which may be lowered below and raised above the level of the track supporting the machine and operated for cutting in such low position, in order that the under-cutting maybe at. the level of the floor upon which the track rests.

Byway of general statement, itmay be said that the machine consists of (l) a truck having a rigid frame or body and having supporting or traction wheels adapted to rest. on an ordinary rail track oron a floor; (2) a longitudinal body supported by the truck and movable up and down thereon; (3) a neck located at the front of said movable body and rotatable on a horizontal aiis extendino' len thwise of the machine and a proximately in an upright plane cutting mldway between the track rails; i) an inner arm hinged to said neck; a head hinged to the forward part of said arm; (6) a forward arm hinged to said head; and (7) a cutting mechanism supported by said forward arm, the members supported by said neck being adapted to change position relative to the axis of said neck and thereby change the position of the cutting mechanism relative to said axis, and the rotation of said neck on its axis further'ohanging the position of said cutting mechanism.

The truck, body, neck, inner arm, head, forward arm, and the cutting means being thus related to each other, the cutting means maybe put into a variety of positions and through a variety of movements while cutting, as will be hereinafter described.

In the accompanying drawings,

Fig. l is an elevation of the right-hand side of a machine embodying my improve ment;

Fig. 2 is a plan of the same machine on a smaller scale;

Fig. 3 is a front elevation, the cutting tool being broken. away;

Fig. l, Fig. 4, and Fig. l show anenlarged upright section on'the line, 4=4, of

Fig; 2, looking inthe direction of the ar row, Fig. at representing the rear portion, F 41" the intermediate portion, and Fig. 4t the forward portion of the machine; Fig. 4 and Fig. 4 are also taken on the line, 4. l, of Fig. 28;

Fig. 5 is a plan of the truck platform, one of the upright side mcmbers being attached to the platform; Fig. 6 is an elevation of the right-hand side of said platform;

Fig. 7 is a plan of the body of the machine, separated from the truck and'other parts;

Fig. 8 is an levation of the right-hand side of said body;

Fig. 9 is an upright, transverse section on the line, 9-9, of Figs"? and 8, looking toward the right;

Fig. lOis a front elevation of the body shown in Figs. '7 and 8, portions being broken away:

Fig. 11 is a bottom view of the topplate of the body of the machine;

Fig. 152 is an elevation of the right hand edge of said plate; I

Fig. 13 is an elevation of the front end of said plate;

Fig. 14- is a longitudinal, upright section on the line, 14-44:, of Figs. 11 and 13;

Fig- 15 is an upright, transverse section on the line, 15-15, of Figs. 11, 12 and 14, looking in the direction of the arrow;

Fig. 16 is a horizontal section on the line, 16-16, of Fig. 4, Fig. 1* and Fig. 4*;

Fig. 17 is a horizontal section on the line, 17-17, of Fig. 4 and Fig. P;

Fig. 18 is an upright, transverse section on the line, 18-18, of Fig. 17, looking in the direction of the arrow, a portion of the superposed structure being added;

' Fig. 19 is an upright section on the line, 19-19, of Fig. 18, looking in the direction of the arrow;

Fig. 20 is a horizontal section on the line, 20-20, of Figs. 18 and 19, looking downward, more parts being shown than appear in Fig. 19;

Fig. 21 is an upright section on the line, 21-21, of Figs. 17 and 20, looking in the direction of the arrow, the parts being shown to a larger scale;

' Fig. 22 is an upright, longitudinal detail section on the line, 22-22, of Figs. 2 and 5, showing a screw and worm gear mechanism for raising the body of the machine on the truck;

Fig. 23 is a section on the line, 23-23, of Fig. 16, looking in the direction of the ar row, the scale being larger;

Fig. 24 is a section on the line, 24-24, of Fig. 23, looking in the direction of the arrow;

Fig. 25 is a section on the line, 25-25, of Fig. 23, looking in the direction of the arrow n ig. 26 is a section on the line, 26-26, of

Fig. 23, looking in the direction of the arrow Fig. 27 is a side elevation of the forward portion of .the machine, detached from the body; a Fig. 28 is a plan of the same mechanism;

Fig. 29 is a section on the line, 29-29, of Fig. 4 and Fig. 27, looking toward the right;

Fig. 30 is a section on the line, 30-30, of 111g 4* and Fig. 27, looking in the directionv of the arrow;

Fig. 31 is a section on the line, 31-31. of Fig. 1*" and Fig. 27, looking in the direction of the arrow;

Fig. 32 is a section on the line, 32-32, of Fig. 4 and Fig. 27, looking in the direction of the arrow;

Fig. 33 is a section on the line, 33-33, of Fig. 27;

Fig. 34 is a section on the rig. 1 and rig. 27;

Fig. 35 is a detail plan of the meeting ends of the inner arm and the head;

Fig. 36 is a plan and Fig. 37 is a longitudinal section of a cap forming part of the cutting tool supporting mechanism.

Referring to said drawings, A designates the truck; 13 designates the longitudinal line, 34-34, of

body which is movable up and down on the truck; C designates the neck which is supported on the forward end of said body and rotatable on an axis which is horizontal and parallel to the body, B, and the track rails, it; D is the inner arm hinged to said neck; 111 is thehead hinged to the inner arm; 1 is a parallel link co-operating with the inner arm in supporting the head; G is the forward arm, and H is the cutting tool.

The truck comprises supporting or traction wheels, A which are in the form of ordinary mine car wheels and mounted on axles, A A is a horizontal truck platform supported onsa-id axles upon which is supported. the body, B. The platform is shown in the form of a rectangle with downward directed flanges alone its four edges. To each side flange of the platform is bolted the lower portion of an upri ht cast metal side member, A, comprising two guide standards, a, and an upright socket or barrel, A Each of said guide standards is provided with an upright channel, A", di-

The body, B, rests between said side members and has upright tongues, 3, extending into the channels, A", of said guide standards so as to permit up and down movement of said tongues in said channels. Said channels and said tongues are shown L-shape in crosssection, in order that said tongues and said standards may engage each other to resist relative lateral movement. The tongues, B are supported upon upright sidewalls. B of the body, B, as shown in Figs. 8, 9 and 19.

At the forward end of the body is a front cross wall, B At .its middle said wall has a bearing. B Approximately midway-between. its front and rear ends, the body has a rear cross wall, B, which has a bearing, 13, in horizontal axial alignmentflwith the bearing, in the cross wall. 13*. A top plate, B", rests upon the cross walls, B andB. baid top plate is secured in posit-ion on the body by bolts, 15'.

' An electric motor, A. furnishes power for propelling the truck. The motor is seated on the rear portion of the truck platform and has an axle. A extendin forward hori zontally and transversely to the truck axles, A In line with and abutting end-wise against the end of the motor shaft is the motor shaft. extension, A", which rests in bearings, A and A A sleeve coupling, A joins the meeting ends of said shafts. On the extension shaft, A immediately at the front of the bearing, A", is a spur gear pinion, A and between the two bearings,

A a worm, A".

Between. the truck axles, A the truck platform has bearings, A, extending downward and surrounding the shaft, A, which extends from one of said axles to the oth r.

On said shaft is a spur gear wheel. A, which meshes with the spur gear pinion. A on the shaft, A Said wheel, A is loose on. the shaft, A and has a sleeve, A extending into the hearing, A. Said wheel. A forms the external member of an expansion friction clutch. Forward of said wheel a sliding cam member, A adapted to turn the arm, A of the clutch for expanding the expansion member of the clutch (Figs. l, 17, and 21).

A. shift lever, A, is coupled to the sliding cam member, A, for shifting the latter endwise on the shaft, A (Fig. 17). When the clutch in the spur gear wheel, A is closed, said wheel transmit-s motion to the shaft, A 5.

The worm, A meshes with a horizontal worm wheel, A which is on an upright shaft, A, which rests in a bearing, A On the lower end of theshaft, A is a worm, A, which meshes with the worm wheel, A which surrounds a clutch sleeve, A and which is rigid on the outer member of an expansion friction clutch, A Said worm wheel is keyed to said sleeve, and said sleeve is loose on the shaft, A The inner member of the expansion friction clutch is lrcved to said shaft. Said clutch is closed by the foraxed on the shaft. A and bevel gears. A, located on the axles, A and meshing with the gears, A (see Figs. 4 and 17).

The transmission through the gearmrl, and A, is for ordinary propulsion of the machine when it is not cutting. The transis used when the machine is to be propelled slowl; while the'cutting mechanism is cutting. The direction of changed by reversing the motor, A. This motor, A, is used onl for the propulsion of the machine. When the machine is at rest. this motor is cut out.

The neck. (l. rests in the bearing. and. extends rearward through said bearing and f. there surrounded by a worm gear wheel, C, which bears against the rear face of the front cross wall, this means the forward movement of said neck is prevented.

. mmediately at the rear of the worm wheel, (.1 is an expanslon friction clutch, B", which.

ward movement of the sliding cam member,

mission through the worms and worm gears propulsion is has a sleeve, B extending forward into the neclr. Q iii. shaft, C lying within the neck, extends rearward into the forward portion of said sleeve and is keyed to said sleeve, so that the outer member of said clutch and said sleeve and said shaft must rotate in unison, At the rear of the neck the slcere,B receives and forms a bearing or the forward end of a transmission shaft. B The rear portion of said shaft rests in the bearing, B in the rear cross wall. B already described.

.QLll the rear of the clutch. E the shaft. B is surrounded by a sliding cam member, B, which is to be n'rored forward for turnthe arm, B. of said clutch for closing the latter. A shift lever, B, is applied to said cam member for moving said cam member toward or from said clutch (see Fi s and 16). When said clutch is closed. indtion is transmitted from the transmission shaft, B through said clutch and its slee e, B, to the neck shaft, C

The rear end of the shaft. B projects through the bearing, B and is there surrounded by the hub of an internal spur gear wheel. 13 which meshes with a pinion, B. which is located within the gear. 3, and surrounds and is keyed to the axle, B, of

the electric motor, B which is supported on the body. l3. When said motor is running, it drives the transmission shaft, B

at speed lower than the speed of the motor axle.

The shaft, 0 transmits motion to the cutting mechanism. as will described later on.

The mechanism employed for raising and lowering the body, R... on thetrucl: is as follows:

On the transmission shaft, B, is a bevel gear wheel. R. which meshes with a horizontal bevel gear wheel. B which surrounds and is keyed to the lower end of an up ight shaft, B. which rests in a bearing, in the top plate. B The upper end of said shaft is surrounded by a bevel gear wheel, Above said wheel, B a horizontal cross shaft, 13, resting in bearings, B in the top plate. At th the bevel wheel. 1...? B si rrounds the shaft. left of the wheel. 5 gear wheel, 3, surrounds s t. shaft. 1 The wheels. B and B cathered on l cross shaft and are joined to a shift lever, B flwhereb v said wheels are so spaced fi in each other as to pennit placing them into a middle position, neither the wheel, B and so as to permit movement toward the rightout of the middle position to bring the bevel wheel. B. into engagement with the wheel, 3, and to permit movement to the left to bring the bevel Wheel, B into engagement with the bevel shaft. (P,

lLZO

lflfi wheel, B The wheel, B takes constant motion from the shaft, 13, through the bevel wheels, B and B When the cross shaft, B is to be at rest, the shift lever, B, is put into its middle position. When said cross shaft is to be rotated, said shift lever is moved in the proper direction to bring the appropriate one of the bevel wheels, B and B into engagement with the bevel wheel, 13

On each end of the cross shaft, B is a norm, 13 which meshes with a worm gear wheel, Pf, on the upper end of the screw shaft, I3 rising through the upright socket, 5V1, in the side members. A", of the truck. The upper portion of said socket is threaded to engage the threads of said shaft; and said shaft has at its upper end a shoulder, B upon which rests a horizontal. web, 13, formed on the top plate, B (see Figs. 2 and 22). Said screw shafts form a means for supporting the body, B, while the tongues,

, B and the channels, A form a means for ments.

guiding said body in its up and down move- \Vhen said screw shafts are turned to make them rise, they lift the body, B; and when said screws are turned to make them descend, they allow said body to descend by gravity to the extent o the descent of said screws.v VVhenit is desired to raise said body, the shift lever, B, is shifted out of the middle position to bring the appro-- priate bevel gear on the shaft, B flinto engagement with the bevel wheel, 13*, which is upon the upright shaft, 13. When the body is to be lowered, said shift lever is shifted out of the middle-position in the opposite direction to engage the other bevel wheel on the shaft, B

The mechanism for rotating the' neck, O, .is as follows: I

In front ofthe rear cross wall, B", a small spur gear wheel, C surrounds the transmission shaft, B and is keyed thereto.

Adjacent said wheel, 0'', are a spur gear wheel, C and a spur gear wheel, O both of which are normally out of mesh with the wheel, O but either of which may, at the will of the operator, be put into mesh with the wheel, O

A rocker. O stands in a plane which is uprightand transverse to the length of the i'nachine and has a journal, (7 extending through the rear cross wall, B The rear end of said journal projects beyond the. rear face of said cross wall and receives a lever, O, which is rigidly secured to said journal. On the forward face of the upper end of said lever is a pin, C, which is adapted to enter any one of the three sockets, C

formed in the rear face of the cross wall.

B (see Figs. 1,6, 18, 23, 24, and 25). Said lever is resilient and bears toward said cross wall, so that when said pin is brought opposite one of said sockets and. the lever is then released. the lever will drive said pin, into said socket and hold it there. By means of this lever, the rocker, C may be set in any one of three ositions. On the rocker, O is a journal, which is loosely surrounded by the relatively large spur gear wheel, O. Forward of the wheel, C, is a smaller spur gear wheel, C, also loosely surrounding said journal and immovably joined to the Wheel, to compel said Wheels to rotate in unison. At one side of the spur gear wheel, C, and below the spur gear wheel, C, said rocker bears a horizontal journal, G which is loosely surrounded by a spur gear wheel, which at all times meshes with the wheel, hen said rocker is turned toward the right, the spur gear wheel, C meshes with the spur gear wheel, O and is rotated by the latter. When the rocker is turned in the opposite direction and beyond the middle position, the spur gear wheel, C, will make engagement with the spur gear wheel, C and receive motion from the latter. The mo tion thus received by the wheel, C, is trans mitted to the wheel, C By thus setting the rocker in its extreme positions, the wheel, C will receive motion in either direction; and when the rocker is set in its middle position, the wheel, C, and also the wheel, .1 will be out of engagement with the wheel, C and no motion will be transgiitted from the'wheel, O to the Wheel,

In alignment with the journal, C the axis of which forms the axis of said rocker, is a shaft, C resting in bearings, O rising from the floor of the body, B. The rear end of said shaft extends through the bearing, C and is surrounded by andikeyed to a spur gear wheel, G which meshes with the spur gear wheel, C wheel, C or the wheel, C is put into mesh with the wheel, O on the transmission shaft, B, the shaft, 0 is rotated, the direction of such rotation depending upon whichof the wheels, O or O, is at the time in mesh with the wheel,

The forward. end of the shaft, C is surrounded by a worm, O", which meshes with a worm gear wheel. O, which surrounds an upright shaft, C the lower end of whichv Whenever either the rests in a bearing, C in the bottom of the body, l and the upper end of which rests in a bearing, (1 formed in the top plate, B (Fig. 26). On said. shaft, above the worm wheel, O, is a worm, C, which meshes with the worm wheel, G which has already been described as surrounding the neck, C, at the rear face of the front cross wall, B At the will of the operator, this train of mechanism may be set to turn the neck, O, in either direction, or said train of mechanism may be disconnected by placing the lever, O into its middle position. It will be observed that the gearing used for this transmission from the shaft, B to said neck calls for a large reduction of speed. It is also to be observed that the worm gears which constitute parts of this train of mechanism serve to lock the neck, 0, in the position which it occupies whenever the rocker, O is placed into its middle or longitudinal position. 1n the form shown by the drawings, the speed ratio between the transmission shaft, B, and the neck, C, is approxi mately 500 to 1; On account of this difference in velocity, the strength of the members in this train may be varied approximately inversely to the velocity ratio.

The purpose of the rotation of the neck, C, is to vary the position of the cutting mechanism, as will, be hereinafter described.

To the forward portion of the neck, O, is hinged the rear end of the inner arm, D. The rear endof said arm is divided to form segmental ears, D A shaft, D extends transversely through said ears and. the forward part of said neck on the axial line of the transmission shaft, 13, and the neck shaft, C the rear end of which abuts against the forward end of said transmission shaft. On the forward end of the shaft, C is a bevel gear wheel, C. At one side of said wheel, O a bevel gear wheel, C ,'loosely surrounds the shaft, D and meshes with the bevel gear wheel, C and receives motion from the latter. A shaft, D lies parallel to the inner arm, D, and rests in bearings, D Theaxis of said shaft and the axis of the neck shaft cut the axis of the shaft, D ata common point. The rear end of the shaft, D projects through its rear bearing and is surrounded with a bevel gear wheel, D which is located beside the bevel gear wheel, C and meshes with the latter, so that motion received by the shaft, C from the transmission shaft, B is transmitted through the gears, O C and D to the shaft D Because of the intersection of the axis of the shafts C D and D as above described, the arm, D, may be turned on the shaft, D without disturbing the mesh of the gears which are located between the shafts, C and D Henc the shaft, D

will receive rotation from the shaft, O regardless of the degree of inclination of the axis of the shaft, D to the axis of the shaft, D

The mechanism for turning the inner arm, D, on the shaft, D so as to change the angle of the axial line of the shaft, D to the axial line of the neck shaft, O will next be described (see Figs. 1, 4 16, 2'7, and 29).

The rear faces ofthe segmental ears, D

are provided with worm gear teeth, d Immediately at the rear of each of said ears is an upright worm shaft, D engaging the teeth of said ears and resting in bearings,

C, on the neck, vC. On the lower end of each of the shafts, D, is a worm wheel, D, which meshes with a worm, D on a shaft, D which rests in bearings, C in the neck, C (Fig 29). Between said bearings, the neck is chambered to make room for the gearing next described.

The shaft, D is located below and transverse to the neck shaft, O and below a spiral gear wheel, D surrounding the neck shaft and keyed thereto at the rear of the bevel gear wheel, O (See Fig. 45 and Fi 29.

- i bevel gear wheel, D loosely surrounds the shaft, D, at one side of the upright plane in which the axis of the neck shaft, O lies. The hub of said bevel gear rests in a bearing, D formed in a barrel, D surrounding and larger than the shaft, D", and secured to the adjacent face of the neck, O, by bolts, 0P

At the opposite side of said plane is a similar bevel gear wheel, 1), which loosely surrounds the shaft, D and has its working face directed toward the-bevel gear wheel, D and which has its hub resting in a bearing, D, in a barrel, D which is secured to the adjacent face of the neck by bolts, (Z

The barrel, D extends toward the barrel, D far enough to cover the space between the bevels, D and D In the interior of the barrel, D and between the bevel wheels, D and D and meshing therewith, are small bevel gear wheels, D", supported loosely on axles, (Z fixed on the barrel, D, so that said wheels,,D can have only a rotary motion received from the bevel gear wheel, D The hubs of the wheels. D and D 3, are clutch members.

At the right of the bevel wheel, D and within the barrel, D is a clutch member, D which surrounds and is feathered to the shaft, D At the left of the bevel gear wheel, D is a, similar clutch member, D similarly applied to the shaft, D A shift bar, D engages said clutch members so as to space them to permit placing said bar into a middle position withboth of said clutch members out of engagement and to permit shifting into the left hand position to cause the clutch member, D to engage the bevel gear wheel, D and to permit shifting said shift bar to the right to bring the. clutchmember, D into engagement with the bevel gear wheel, D

Surrounding the hub of the bevel gear wheel, D and resting against the right hand, face of said wheel is aspiral gear wheel, D said wheels being secured to each other by a cross pin, (Z or other suitable means to compel them to turn in unison. Said spiral gear wheel meshes with the spiral gear wheel, D, which, as already described surrounds and is keyed to the neck 

